RW>I started using Penzoil synthetic a couple of decades ago, but switched to   
   RW>Mobile One around 15 years ago. When I bought the Z28 in 2001, it already   
   RW>had Mobile One in the engine, a factory synthetic in the 6spd trans and   
   RW>the posi rear end.   
      
   Teh Top Three raqted Synthetic oils are Amsoil, Penzoil, and Mobile I   
   in that order. I picked Penzoil becasue it is just as the other two and   
   it costs less. Rembember "A Penny Saved is a Penny Earned"  :-)   
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    þ SLMR 2.1a þ 0   
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